diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/lowlevel_init.S | 96 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx5/imx-regs.h | 4 |
2 files changed, 67 insertions, 33 deletions
diff --git a/arch/arm/cpu/armv7/mx5/lowlevel_init.S b/arch/arm/cpu/armv7/mx5/lowlevel_init.S index d0bab45..d62093b 100644 --- a/arch/arm/cpu/armv7/mx5/lowlevel_init.S +++ b/arch/arm/cpu/armv7/mx5/lowlevel_init.S @@ -296,20 +296,66 @@ setup_pll_func: setup_pll PLL1_BASE_ADDR, 800 - setup_pll PLL3_BASE_ADDR, 216 + setup_pll PLL3_BASE_ADDR, 400 + + /* Switch peripheral to PLL3 */ + ldr r0, =CCM_BASE_ADDR + ldr r1, =0x00015154 + str r1, [r0, #CLKCTL_CBCMR] + ldr r1, =0x02888945 + orr r1, r1, #(1 << 16) + str r1, [r0, #CLKCTL_CBCDR] + /* make sure change is effective */ +1: ldr r1, [r0, #CLKCTL_CDHIPR] + cmp r1, #0x0 + bne 1b + + setup_pll PLL2_BASE_ADDR, 400 + + /* Switch peripheral to PLL2 */ + ldr r0, =CCM_BASE_ADDR + ldr r1, =0x00808145 + orr r1, r1, #(2 << 10) + orr r1, r1, #(0 << 16) + orr r1, r1, #(1 << 19) + str r1, [r0, #CLKCTL_CBCDR] + + ldr r1, =0x00016154 + str r1, [r0, #CLKCTL_CBCMR] + + /*change uart clk parent to pll2*/ + ldr r1, [r0, #CLKCTL_CSCMR1] + and r1, r1, #0xfcffffff + orr r1, r1, #0x01000000 + str r1, [r0, #CLKCTL_CSCMR1] + + /* make sure change is effective */ +1: ldr r1, [r0, #CLKCTL_CDHIPR] + cmp r1, #0x0 + bne 1b + + setup_pll PLL3_BASE_ADDR, 216 + + setup_pll PLL4_BASE_ADDR, 455 /* Set the platform clock dividers */ ldr r0, =ARM_BASE_ADDR - ldr r1, =0x00000725 + ldr r1, =0x00000124 str r1, [r0, #0x14] ldr r0, =CCM_BASE_ADDR - mov r1, #0 str r1, [r0, #CLKCTL_CACRR] - /* Switch ARM back to PLL 1 */ - str r4, [r0, #CLKCTL_CCSR] + /* Switch ARM back to PLL 1. */ + mov r1, #0x0 + str r1, [r0, #CLKCTL_CCSR] + + /* make uart div=6 */ + ldr r1, [r0, #CLKCTL_CSCDR1] + and r1, r1, #0xffffffc0 + orr r1, r1, #0x0a + str r1, [r0, #CLKCTL_CSCDR1] /* Restore the default values in the Gate registers */ ldr r1, =0xFFFFFFFF @@ -322,36 +368,14 @@ setup_pll_func: str r1, [r0, #CLKCTL_CCGR6] str r1, [r0, #CLKCTL_CCGR7] - /* Switch peripheral to PLL2 */ - ldr r0, =CCM_BASE_ADDR - ldr r1, =0x00808145 - orr r1, r1, #2 << 10 - orr r1, r1, #1 << 19 - str r1, [r0, #CLKCTL_CBCDR] + mov r1, #0x00000 + str r1, [r0, #CLKCTL_CCDR] - ldr r1, =0x00016154 - str r1, [r0, #CLKCTL_CBCMR] - /* Change uart clk parent to pll2*/ - ldr r1, [r0, #CLKCTL_CSCMR1] - and r1, r1, #0xfcffffff - orr r1, r1, #0x01000000 - str r1, [r0, #CLKCTL_CSCMR1] - ldr r1, [r0, #CLKCTL_CSCDR1] - and r1, r1, #0xffffffc0 - orr r1, r1, #0x0a - str r1, [r0, #CLKCTL_CSCDR1] - - /* make sure divider effective */ -1: ldr r1, [r0, #CLKCTL_CDHIPR] - cmp r1, #0x0 - bne 1b + /* for cko - for ARM div by 8 */ + mov r1, #0x000A0000 + add r1, r1, #0x00000F0 + str r1, [r0, #CLKCTL_CCOSR] - str r4, [r0, #CLKCTL_CCDR] - - /* for cko - for ARM div by 8 */ - mov r1, #0x000A0000 - add r1, r1, #0x00000F0 - str r1, [r0, #CLKCTL_CCOSR] #endif /* CONFIG_MX53 */ .endm @@ -405,3 +429,9 @@ W_DP_665: .word DP_OP_665 W_DP_216: .word DP_OP_216 .word DP_MFD_216 .word DP_MFN_216 +W_DP_400: .word DP_OP_400 + .word DP_MFD_400 + .word DP_MFN_400 +W_DP_455: .word DP_OP_455 + .word DP_MFD_455 + .word DP_MFN_455 diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h index 46017f4..1d060fd 100644 --- a/arch/arm/include/asm/arch-mx5/imx-regs.h +++ b/arch/arm/include/asm/arch-mx5/imx-regs.h @@ -308,6 +308,10 @@ #define DP_MFD_400 (3 - 1) #define DP_MFN_400 1 +#define DP_OP_455 ((9 << 4) + ((2 - 1) << 0)) +#define DP_MFD_455 (48 - 1) +#define DP_MFN_455 23 + #define DP_OP_216 ((6 << 4) + ((3 - 1) << 0)) #define DP_MFD_216 (4 - 1) #define DP_MFN_216 3 |